Here is a short script which will do what you want. Run it as:
scriptname letter
and see the magic.
#!/bin/bash
upletter ()
{
octal=`echo -n $L | od -A n -o`
new_octal=`echo "obase = 8;ibase=8;$octal + 1" | bc`
L=`eval echo -e \\\\\\\\$new_octal`
}
L=$1
upletter
echo This is the new letter $L
I have no idea why I had to use the eval statement and all the slashes
in front of $new_octal, but it works. That is the kind of thing I can
imagine breaking between different versions of bash.
Joel
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